From 54088c9b33809dd6d76cacfc86f9012d4f61d361 Mon Sep 17 00:00:00 2001 From: Mike Bayer Date: Mon, 2 Feb 2015 12:58:24 -0500 Subject: [PATCH] - don't overwrite an existing _strategy_keys collection; this would cause LazyLoader to be initialized twice per property. --- lib/sqlalchemy/orm/interfaces.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/sqlalchemy/orm/interfaces.py b/lib/sqlalchemy/orm/interfaces.py index 299ccaaafa..b3b8d612dc 100644 --- a/lib/sqlalchemy/orm/interfaces.py +++ b/lib/sqlalchemy/orm/interfaces.py @@ -522,7 +522,8 @@ class StrategizedProperty(MapperProperty): @classmethod def strategy_for(cls, **kw): def decorate(dec_cls): - dec_cls._strategy_keys = [] + if not hasattr(dec_cls, '_strategy_keys'): + dec_cls._strategy_keys = [] key = tuple(sorted(kw.items())) cls._all_strategies[cls][key] = dec_cls dec_cls._strategy_keys.append(key) -- 2.47.3